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            <h2 class="title" style="clear: both"><a id="envset_lg_filemode"></a>DB_ENV-&gt;set_lg_filemode()</h2>
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      <pre class="programlisting">#include &lt;db.h&gt;

int
DB_ENV-&gt;set_lg_filemode(DB_ENV *dbenv, int lg_filemode);  </pre>
      <p>
         Set the absolute file mode for created log files.  This method is
         <span class="bold"><strong>only</strong></span> useful for the rare Berkeley DB
         application that does not control its umask value.
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         Normally, if Berkeley DB applications set their umask appropriately,
         all processes in the application suite will have read permission on
         the log files created by any process in the application suite. 
         However, if the Berkeley DB application is a library, a process using
         the library might set its umask to a value preventing other processes
         in the application suite from reading the log files it creates.  In
         this rare case, the <code class="methodname">DB_ENV-&gt;set_lg_filemode()</code> method can be used to
         set the mode of created log files to an absolute value.
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         The database environment's log file mode may also be configured
         using the environment's <a href="../../programmer_reference/env_db_config.html#env_db_config.DB_CONFIG" class="olink">DB_CONFIG</a> file. The syntax of the entry
         in that file is a single line with the string "set_lg_filemode",
         one or more whitespace characters, and the absolute mode of
         created log files. Because the <a href="../../programmer_reference/env_db_config.html#env_db_config.DB_CONFIG" class="olink">DB_CONFIG</a> file is read when the
         database environment is opened, it will silently overrule
         configuration done before that time.
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      <p>
         The <code class="methodname">DB_ENV-&gt;set_lg_filemode()</code> method configures a database
         environment, not only operations performed using the specified 
         <a class="link" href="env.html" title="Chapter 5.  The DB_ENV Handle">DB_ENV</a>  handle.
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         The <code class="methodname">DB_ENV-&gt;set_lg_filemode()</code> method may be called at any time during
         the life of the application.
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         The <code class="methodname">DB_ENV-&gt;set_lg_filemode()</code> <span>
            <span>
                  method returns a non-zero error value on failure and 0 on success.
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              <h3 class="title"><a id="idp53027880"></a>Parameters</h3>
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                <h4 class="title"><a id="idp53043328"></a>lg_filemode</h4>
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                          The <span class="bold"><strong>lg_filemode</strong></span> parameter is the
                          absolute mode of the created log file.
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              <h3 class="title"><a id="idp53035456"></a>Class</h3>
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                    <a class="link" href="env.html" title="Chapter 5.  The DB_ENV Handle">DB_ENV</a>, 
                    <a class="link" href="logc.html" title="The DB_LOGC Handle">DB_LOGC</a>, 
                    <a class="link" href="lsn.html" title="Chapter 7.  The DB_LSN Handle">DB_LSN</a> 
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              <h3 class="title"><a id="idp53038808"></a>See Also</h3>
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                     <a class="xref" href="lsn.html#loglist" title="Logging Subsystem and Related Methods">Logging Subsystem and Related Methods</a> 
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